Andrew Huberman· PhD
why do we show our lack of sleep in our skin so rapidly it's almost like a a thermometer on on how much sleep somebody got the night before
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
why do we show our lack of sleep in our skin so rapidly it's almost like a a thermometer on on how much sleep somebody got the night before
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
but they also noticed this sickliness sort of composition to someone's face so that's a very long way of explaining the bags under the eyes
it comes back to the immune system that that sort of pale paror in a face almost that sickly looking skin in PO is because you're already seeing the effects of the immune system and it's the same with the bags under the eyes
10 minutes of bright outdoor light within the first hour of waking anchors the circadian phase and improves sleep onset that night.
Morning sunlight exposure shifts the cortisol awakening response forward, improving daytime alertness.
Long-term morning sunlight reduces age-related macular degeneration risk.
Sleep regularity predicts all-cause mortality more strongly than sleep duration.
Tracking deep sleep on a wearable accurately reflects EEG-measured slow-wave sleep.
Caffeine has a half-life long enough that consumption after 2pm measurably degrades deep sleep in slow metabolizers.